220494049 has 2 divisors, whose sum is σ = 220494050. Its totient is φ = 220494048.

The previous prime is 220494017. The next prime is 220494083. The reversal of 220494049 is 940494022.

It is an a-pointer prime, because the next prime (220494083) can be obtained adding 220494049 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201072400 + 19421649 = 14180^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 220494049 - 2⁵ = 220494017 is a prime.

It is equal to p_12148198 and since 220494049 and 12148198 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (220494349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110247024 + 110247025.

It is an arithmetic number, because the mean of its divisors is an integer number (110247025).

Almost surely, 2^220494049 is an apocalyptic number.

It is an amenable number.

220494049 is a deficient number, since it is larger than the sum of its proper divisors (1).

220494049 is an equidigital number, since it uses as much as digits as its factorization.

220494049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 220494049 is about 14849.0420229724. The cubic root of 220494049 is about 604.1326267898.

The spelling of 220494049 in words is "two hundred twenty million, four hundred ninety-four thousand, forty-nine".